Shuttle eye



Jan. 15, 1946. A. VlLLANl SHUTTLE EYE Filed Fb. 28, 1945 INVENTOR.ANTON/0 V/LLA/V/ ATTORNEY Patented Jan. 15, 1946 Antonio Villani,Milford, Mass,

Draper Corporation, Hopedale, Mass, a corporation of Maine assignor toApplication February 28, 1945, Serial No. 580,090

6' Claims.

The present invention'relates generally to loom shuttles and, asillustrated herein, relates more particularly to means forpreventingunthreading of such shuttles.

Automatically threading loom shuttles are usually provided with athreading block having a longitudinal thread passage, a side deliveryeye and a transverse passageconnecting the longitudinal thread passageand the side delivery eye. During the first pick after a new fillingcarrying bobbin has been transferred to the shuttle, the shuttle ispartially threaded and the filling thread is in the longitudinal threadpassage. During the next or return pick the shuttle is completelythreaded and the filling thread runs from the longitudinal threadpassage, throughthe' transverse passage and into the side delivery eye.Under some conditions, the filling thread maybe thrown upwardly out ofthe side delivery eye and the shuttle will unthread either partially orcomvided at the side delivery eye with a trap mem-' her which issupported by the block and has pr-' tions against which the filling runsduring picking of the shuttle, one end of the trap member is so locatedwithin a recess formed in the threading block that the filling threadreadily enters the side delivery eye but is prevented from movingupwardly out of the side delivery eye.

Another object of the invention is to improve generally upon theconstruction and operation of, shuttles and threading blocks therefor.

The present invention is illustrated as e mremovably supported and acavity [8 communi-- cates therewith and in which a usual threading blockis mounted and secured in position by a bolt 22. t

The threading block 20 is provided with ausual longitudinal threadpassage 24 having a pair of tension pads 26 adjacent to the inner endthereof.

. The block 20 is provided with an outwardly and With the above andother objects and features in view, the invention will now be describedwith particular reference to the accompanying drawing in which:

Fig. l is a plan view of a portion of a shuttle in which the presentinvention is embodied;

Fig. 2 is a view in front elevation of the shuttle shown in Fig.

Fig. 3 is a view in section taken along the line IIII1I of Fig. 1;

Fig. 4 is an enlarged detail view, partly in section, showing thefilling trap in position; and

Fig. 5 is a detail view, partly in section, showing the side deliveryeye and trap in front elevation.

rearwardly' projecting-hook 28 which terminates in a groove or recess 30formed in the shuttle body. The threading block 20 is also provided witha downwardly extending horn 32 beneath which the filling thread passesto the side delivery ye -17 The side delivery eye 34 is provided with athreadtrap member 36 which is arranged to permit the filling to enterthe side delivery eye 34. The member 36 is preferably formed ofrelatively heavy and stiff steel wire which is preferably coatedwith ametal such, for examplaas chromium to provide a hard wear resistingsurface, The wire is bent into a generally rectangular. shape, as shownbest in Figs. 4 and 5. The trap is provided with a substantiallyvertical leg 38, the upper end portion of which is inserted in a holeformed in the threading block 2!). This vertical leg 38 takes the placeof one of the usual hardened posts against which the filling bears whenthe shuttle'is picked in one direction. The wire'is then bent outwardlyand forms a substantiallyhorizontal leg 42 which fits into a recess 44formed in the body of the shuttle l0 and which extends across the bottomof the side deliveryeye 34. The wire is then bent upwardly to'form asubstantially vertical leg 46 which is substantially parallel to the leg38 and which fits into a substantially vertical recess formed in theouter wall of the side delivery eye 34. The wire is further bentinwardly, downwardly and slightly rearwardly to form an inclined leg 48which terminates in a recess 50 formed in the threading block 20. Thetrap member 36 at the junction between the vertical leg 46 and theinclined leg s8 is provided with a projection 52 which is designed toprevent the filling thread from being caught between the trap and thewood of the shuttle.

When the shuttle ii] is picked out the right hand shuttle box after anexhausted bobbin has.

been replaced by a full bobbin, the filling thread passes between thetension pads 26 and extends into and through the longitudinal threadpassage 24 of the threading block and under the hook 28, During thenext, or return, pick the filling passes down under the horn 32 and ispulled inwardly over the inclined leg 48 and into the side delivery eye34. The free end of the leg 43 extends into therecess-i: 511 a distancesufficient to prevent thethread from being thrown upwardlyand out of theeye during subsequent picks but does not interfere appreciably with thethreading operation. The trap member 38 performs another necessary anddesirable function in that the vertical legs 38 and 46 form: posts: overwhich the filling runs during operationof the shuttle;

Having thus described my invention, what I claim as new and desire tosecurezby LettersPatent of the United States is:

1. An automatically threading loom shuttle comprising a shuttle bodyhaving a. threading block and:- a side delivery eye, said. block havinga longitudinal, thread passage and a. transverse. thread passage.communicating with said side delivery eye and a. trapmember. shaped. topro.-- vide a pair of substantially vertical posts at opposite sidessof. the delivery eye, and. a. portion. pro.- jecting from the upper endof one: of the said posts toward the. other post-acrossthe top. of.said. side delivery eye and having a free end; portion, terminating.under. a portion. of said threading blockto forma thread trap.

I 2.. an automatically threading loom. shuttle comprising, awshuttlebody having a threading block. and a sideldelivery eye, said threadingblock having. a longitudinal thread; passage. and a transverse thread.passage. communicating with said sidadeliver eye, and a trapmemher forsaid side delivery eye,. said trap member substantially parallel postsat each end of the side: deslivery eye,, one. of. said posts. having a.portion extending. across the top: of said. side delivery eye. andhaving; a. tree end portion extending under. a portion or said threadingblock to. permit the filling. threadto enter said side delivery eye but.preventingv said filling thread from thereafter moving upwardly out of.said; side delivery eye.

3.. An automatically threading loom shuttle comprising a shuttlefbodyhaving. a. threading block anda side delivery eye,,saidthreading blockhaving. a longitudinalthread passage andv a trans.- verse thread.passage communicating with said side delivery eye and a. trap. memberfor said side delivery eye supported by said block. and said shuttle.body, said trap member comprising. a substantially vertical. leg havinga portion ex-- tending into said threading block and supported thereby,a substantial horizontal portion extending across the bottom. of saidside delivery eye, a substantially vertical. leg parallel. to said firstleg, and a portion. extending from said second leg. downwardly towardthe first mentioned leg.

and having a free end portion terminating under a portion of saidthreading block.

4. In an automatically threading loom shuttle comprising a shuttle bodyhaving a threading block and a side delivery eye, said threading blockhaving a longitudinal thread passage and a transverse thread passagecommunicating with said side delivery eye, said trap member being formedof a. singlepieceof abrasion resisting material and comprising a pair ofspaced substantially parallel posts at either side of the side, deliveryeye and connected at their lower ends by a bar extending across thebottom of said side delivery eye, one of said posts having a portionprojected inwardly and downwardly across the top of said side deliveryeye and having its free end portion terminatingbelow a portion of saidside delivery eye toforma thread trap.

5. In an automatically threading loom shuttle comprising a shuttle bodyhaving a threading block and: aside delivery. eye, said threading blockhaving alongitudinal threadpassage and atranse verse thread passage.communicating with said side delivery eye, said trap memberbeing formedof a single; piece of. abrasion resisting material and comprising a pairof spaced substantially parallel posts. at either side. of. the sidedelivery; eye. and. connected atv their. lower ends by a bar extendingacrossthebottom of said side, delivery eye, one of said postshaving, a.portion. projected inwardly and. downwardly across the top; of said:side delivery eye and having its. free end portion terminating below a.portion of. said side; delivery: eye. to. form a thread trap; the. otherof said posts being insertedin. a. substantially vertical hole; iormedin saidthreading blockv to hold said thread member in position.

6.. Inan automatically threading loom. shuttle comprising, a shuttle.body having a threading block and aside delivery eye,.said threadingblock having alongitudinal thread passageand a transverse thread.passage communicatingwith said. side, delivery eye, said trap.member'heingformed or a single piece. of. abrasion resisting material:and comprising a pair of spaced substantially parallel posts at eitherside. of the side delivery eye and connected. at. their lower ends by abar extending across the. bottom of, said sidefdeliveryeye,v one of saidposts having, a. portion projected inwardly and downwardly across thetop. of said side. delivery eye and. having its free end portionterminating below a portion of said side delivery eye. to form. a threadtrap, the. other of said posts being inserted in a substantiallyvertical hole; formed insaid threading block to hold said thread memberin position, the bottom bar and the post having the inwardly anddownwardlyprojecting portion being mounted in recesses formed in theshuttle body to prevent angular movement of the trapi'member when the,threading block. is secured in the shuttle,

ANTONIO

